One method for improving the reproductive performance of a flock is to emphasize lambing rate in the breeding program. However, in order to identify animals with a history of high prolificacy, some degree of record keeping is necessary. Furthermore, to maximize the rate of flock improvement for lamb production, selection decisions should be based on an animal's genetic merit for the trait rather than on phenotypic performance. This review presents the framework of a computerized flock recording scheme designed to meet these two objectives, namely to facilitate the mechanics of record keeping and to summarize production records such that animals with superior genotypes for lambing rate can be identified.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume IX. Breeding programs for dairy and beef cattle, water buffalo, sheep, and goats., , 665–670, 1986
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